CHI86FA218

NTSB accident investigation · Learjet 24 · Ypsilanti, MI · September 3, 1986

Accident · Minor injuriesField investigationFinal report
Date
September 3, 1986, 06:53 local (10:53 UTC)
Place
Ypsilanti, MI
Injuries
1 minor, 2 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N88JFLearjet 24
Weather
Instrument (IMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19860903086229A
Case key
13275

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

In flight collision with terrain/waterMissed approach (ifr)
Missed approach - improperCopilot/second pilotCause
Lack of total experience in type of aircraftCopilot/second pilotFactor
Minimum descent altitude - exceededCopilot/second pilotCause
Overconfidence in personal abilityPilot in commandFactor
Supervision - improperPilot in commandCause
Loss of engine powerClimb
Engine installation,suspension mounts - previous damageCause
FireLanding - roll
Landing gear - previous damageCause

Analysis

Crew attempted ILS approach with indefinite ceiling and RVR=o in fog. Co-pilot at controls. During missed approach, acft contacted runway where glideslope intersects terrain with sufficient force to shear all three landing gear. Right engine spolled down during climbout. Crew diverted to detroit metro and effected no gear landing. Minor fire broke out during ground slide. Both altimeters bench checked within tolerances.

Aircraft

Registration
N88JF
Reported as
Learjet 24
Category
Airplane
Serial number
110
Airframe hours
8,468
Engine
GE CJ610-4, 2,580 lbs thrust, turbo jet
Damage
Substantial damage
Fire
On-Ground
Flight
Positioning · Part 91
Registered owner
John L. Roper
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 25, 1986
Departed
MKC · Kansas City, MO
Destination
YIP · Ypsilanti, MI
Flight plan
IFR
Airport
YIP · Detroit Willow Run, runway 5R, 7,522 × 150 ft, asphalt

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
25
Certificates
Commercial, Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Right
Flight hours
3,468 total · 233 in this make and model · 3,216 as pilot in command · 220 in the last 90 days · 3 in the last 24 hours

Weather

Conditions
Instrument (IMC) · Day
Wind
Calm
Altimeter
30.00 inHg
Observed at
YIP

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.